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8-inch Kevlar 3-Way High Power In-Wall Speaker (Pair) - 100W Nominal, 200W Max
In Stock This item should ship tomorrow (11/30/2015) if ordered within 13 hours 11 minutes

8-inch Kevlar 3-Way High Power In-Wall Speaker (Pair) - 100W Nominal, 200W Max

Monoprice brings custom in-wall speakers to new levels of affordability with our line of Monoprice Brand Premium in-wall and in-ceiling speakers. These new, high fidelity units deliver the high quality craftsmanship and construction you've come to expect from Monoprice brand products at a fraction of what you would expect to pay for them retail.

In-wall and in-ceiling speakers allow you to expand your listening environment throughout your entire home and remove the clutter of giant box speakers, giving you back your living space. It's a win-win, no-compromise situation for those who desire high fidelity and those who put emphasis on decor.

Kevlar cones are light weight yet extremely rigid, providing very precise audio with minimal distortion from cone flex. Our Kevlar speakers are matched with an equally precise silk membrane dome tweeter made of titanium fiber thread and a high quality crossover network to ensure high fidelity and low distortion. The lower distortion levels allow the speaker to be driven harder and handle higher peak power levels. The main benefits of our Kevlar speakers are the clarity and fidelity at which they produce audio.


  • Light & rigid, well balanced, yellow woven kevlar cone woofers for distortion free reproduction.
  • Oversized magnets for greater bass impact
  • Precision titanium silk membrane dome tweeters for sweeter highs and pure sonic clarity

Please note that this video shows the specific instructions for installation of PID 4101. However, it is representational of the steps, tools, and types of procedures that would be used for the installation of any in-wall or in-ceiling speaker and is included on this page for reference purposes only. Please refer to the installation instructions of the in-wall or in-ceiling speaker you have for the specific dimensions and installation procedures.

Note that the price listed in the video was the price for PID 4101 at the time the video was made. Prices can fluctuate up and down based on production costs and the value of the US$ against foreign currencies.

Model 6816
Type 3-Way High-Power In-Wall Speaker
Woofer Size 8"
Woofer Cone Kevlar woven cone with rubber edge
Woofer Voice Coil 35 mm A.S.V.
Woofer Magnet 30 oz.
Midrange Size 4"
Midrange Cone Kevlar woven cone with rubber edge
Midrange Voice Coil 20 mm A.S.V.
Midrange Magenet 5.4 oz.
Tweeter Size 1"
Tweeter Cone Cat-eye silk dome
Impedance 8 ohms ± 15%
DC Resistance 7.2 ohms ± 7%
Sensitivity 90 dB ± 2 dB (1 watt/1 meter)
Power Capacity 100 watts (RMS), 200 watts (Max)
Frequency Response 50 Hz to 20 KHz
Maximum Distortion 5%
Crossover 12 dB
Adjustment Switch 0, -3, -6 dB
Fs 50+- 20% Hz without baffle
Qes 0.749
Qms 2.472
Qts 0.575
Re 7.200 ohm
Vas 26.823m
Cold Test Temperature -25° ±3°C for 16 hours
Heat Test Temperature +70° ±2°C for 16 hours
Operating Temperature Range -30° ±3°C to +70° ±2°C
Dimensions (LxWxD) 357 x 255 x 100 mm
Cutout Dimensions (LxWxD) 324 x 222 x 91 mm


  • Fs = resonant frequency of loudspeaker moving mass (in free air)
  • Qes = electrical Q of loudspeaker
  • Qms = mechanical Q of loudspeaker
  • Qts = total Q of loudspeaker
  • Re = electrical resistance of voice coil
  • Vas = equivalent air volume of moving mass suspension

137 Reviews

93.65% of the reviewers recommend this product


Very happy so far

  • jontyrees,
  •  austin, TX 
  • 11/11/2015 2:29:57 PM

Pros: solid, hefty magnets, sound good, look good, easy to install

Cons: grilles hard to paint

So far so good! I put 4 of them in my walls as surround and rear surround in a 7.1 system in a 25x16 or so room. Straight out of the box, they sound better than the fairly large JBL bookshelf speakers they replaced. The improvement could be down to the location, as the 6816s are installed at about shoulder height, while the bookshelves were up closer to the ceiling. They haven't broken in yet, and I have barely increased volume above normal conversation levels, but they sound good. I like that they have the 8" woofer with separate midrange, as I'm anticipating this will result in a nice full sound. My receiver is set to "small" for all speakers, as I have a sub (big old 15" with a partsexpress plate amp), so there won't be much low end running through them.
Installation was a breeze, although I definitely recommend taking the speaker assembly out of the frame, installing the frame, then reattaching to the frame. It's 6 screws, and gives you complete access to the "ears" that hold the whole thing to the drywall - it's a no-brainer to do it this way. Painting has been a pain. again, take the speaker out of the frame before you paint the frame - way easier than taping. The grille is pretty fine, so getting paint to cover all the white surfaces is tricky without clogging the little holes. I think a spray can would have helped me. Right now mine are installed without grilles, and they look good with the yellow cones on black, but for WAF and protection, I'll put the grilles on.

All in all this has worked out GREAT so far. Nice job monoprice!

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Sad...then Happy again...

  • Michael Willeford,
  •  ,  
  • 7/27/2015 8:39:54 AM

Pros: Speakers sound great at a great price and easy to install.

Cons: None yet..

I ordered these to replace 10yr old front channel Bose cubes. the original pair showed up, I immediately plugged them in to test and found that one had a frozen woofer cone. I contacted support, got an RMA, shipped this pair back and received a new pair in about 7 days. Tested them both and they rock! Unfortunately I need to install these from attic and it is waaay to hot just yet, so they aren't in the wall yet but as good as they sound sitting on the table, I know they'll sound even better with the enclosure of the wall. :-)

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  • Sven,
  •  White Plains, NY 
  • 7/20/2015 12:53:06 PM

The speakers are of poor quality. They seem cheaply made and the sound is harsh, maybe they will sound better when they break in. I had issues with the template for the holes and the mounting brackets being weak. I had numerous complications and issues with them. I will not be shopping at Monoprice again.

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  • Anonymous,
  •  Monument, CO 
  • 7/13/2015 6:16:43 PM

Pros: Awesome sound quality for the money!

Cons: Mounting hardware is challenging to work with. Running screws all the way through clip to ease torque required prior to insertion into wall/ceiling was critical to not breaking a screw or clip. Not doing this caused tentioning issues with virtually every clip. A better mechanical design would make these near perfect...

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Don't paint

  • Ryan,
  • 7/13/2015 9:25:14 AM

Pros: Excellent sound for price

Cons: Bought in wall speakers so they would look better for my wife in the family room. Unfortunately, they don't paint vey well even when you mix the paint with water. Now I have 5 holes in the wall with terrible looking speaker grills. Just leave them white! Monoprice refused to replace the speaker grills for me. I've already tried sanding them down and put have soaked them in various paint thinners. Wonderful speakers if you're fine with the given color (white).

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